# Copyright 2019 Google LLC
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
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#     http://www.apache.org/licenses/LICENSE-2.0
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# NOTE: This file is auto generated by the elixir code generator program.
# Do not edit this file manually.

defmodule GoogleApi.ServiceManagement.V1.Model.MetricDescriptor do
  @moduledoc """
  Defines a metric type and its schema. Once a metric descriptor is created, deleting or altering it stops data collection and makes the metric type's existing data unusable. 

  ## Attributes

  *   `description` (*type:* `String.t`, *default:* `nil`) - A detailed description of the metric, which can be used in documentation.
  *   `displayName` (*type:* `String.t`, *default:* `nil`) - A concise name for the metric, which can be displayed in user interfaces. Use sentence case without an ending period, for example "Request count". This field is optional but it is recommended to be set for any metrics associated with user-visible concepts, such as Quota.
  *   `labels` (*type:* `list(GoogleApi.ServiceManagement.V1.Model.LabelDescriptor.t)`, *default:* `nil`) - The set of labels that can be used to describe a specific instance of this metric type. For example, the `appengine.googleapis.com/http/server/response_latencies` metric type has a label for the HTTP response code, `response_code`, so you can look at latencies for successful responses or just for responses that failed.
  *   `launchStage` (*type:* `String.t`, *default:* `nil`) - Optional. The launch stage of the metric definition.
  *   `metadata` (*type:* `GoogleApi.ServiceManagement.V1.Model.MetricDescriptorMetadata.t`, *default:* `nil`) - Optional. Metadata which can be used to guide usage of the metric.
  *   `metricKind` (*type:* `String.t`, *default:* `nil`) - Whether the metric records instantaneous values, changes to a value, etc. Some combinations of `metric_kind` and `value_type` might not be supported.
  *   `monitoredResourceTypes` (*type:* `list(String.t)`, *default:* `nil`) - Read-only. If present, then a time series, which is identified partially by a metric type and a MonitoredResourceDescriptor, that is associated with this metric type can only be associated with one of the monitored resource types listed here.
  *   `name` (*type:* `String.t`, *default:* `nil`) - The resource name of the metric descriptor.
  *   `type` (*type:* `String.t`, *default:* `nil`) - The metric type, including its DNS name prefix. The type is not URL-encoded. All user-defined metric types have the DNS name `custom.googleapis.com` or `external.googleapis.com`. Metric types should use a natural hierarchical grouping. For example: "custom.googleapis.com/invoice/paid/amount" "external.googleapis.com/prometheus/up" "appengine.googleapis.com/http/server/response_latencies"
  *   `unit` (*type:* `String.t`, *default:* `nil`) - The units in which the metric value is reported. It is only applicable if the `value_type` is `INT64`, `DOUBLE`, or `DISTRIBUTION`. The `unit` defines the representation of the stored metric values. Different systems might scale the values to be more easily displayed (so a value of `0.02kBy` _might_ be displayed as `20By`, and a value of `3523kBy` _might_ be displayed as `3.5MBy`). However, if the `unit` is `kBy`, then the value of the metric is always in thousands of bytes, no matter how it might be displayed. If you want a custom metric to record the exact number of CPU-seconds used by a job, you can create an `INT64 CUMULATIVE` metric whose `unit` is `s{CPU}` (or equivalently `1s{CPU}` or just `s`). If the job uses 12,005 CPU-seconds, then the value is written as `12005`. Alternatively, if you want a custom metric to record data in a more granular way, you can create a `DOUBLE CUMULATIVE` metric whose `unit` is `ks{CPU}`, and then write the value `12.005` (which is `12005/1000`), or use `Kis{CPU}` and write `11.723` (which is `12005/1024`). The supported units are a subset of [The Unified Code for Units of Measure](https://unitsofmeasure.org/ucum.html) standard: **Basic units (UNIT)** * `bit` bit * `By` byte * `s` second * `min` minute * `h` hour * `d` day * `1` dimensionless **Prefixes (PREFIX)** * `k` kilo (10^3) * `M` mega (10^6) * `G` giga (10^9) * `T` tera (10^12) * `P` peta (10^15) * `E` exa (10^18) * `Z` zetta (10^21) * `Y` yotta (10^24) * `m` milli (10^-3) * `u` micro (10^-6) * `n` nano (10^-9) * `p` pico (10^-12) * `f` femto (10^-15) * `a` atto (10^-18) * `z` zepto (10^-21) * `y` yocto (10^-24) * `Ki` kibi (2^10) * `Mi` mebi (2^20) * `Gi` gibi (2^30) * `Ti` tebi (2^40) * `Pi` pebi (2^50) **Grammar** The grammar also includes these connectors: * `/` division or ratio (as an infix operator). For examples, `kBy/{email}` or `MiBy/10ms` (although you should almost never have `/s` in a metric `unit`; rates should always be computed at query time from the underlying cumulative or delta value). * `.` multiplication or composition (as an infix operator). For examples, `GBy.d` or `k{watt}.h`. The grammar for a unit is as follows: Expression = Component { "." Component } { "/" Component } ; Component = ( [ PREFIX ] UNIT | "%" ) [ Annotation ] | Annotation | "1" ; Annotation = "{" NAME "}" ; Notes: * `Annotation` is just a comment if it follows a `UNIT`. If the annotation is used alone, then the unit is equivalent to `1`. For examples, `{request}/s == 1/s`, `By{transmitted}/s == By/s`. * `NAME` is a sequence of non-blank printable ASCII characters not containing `{` or `}`. * `1` represents a unitary [dimensionless unit](https://en.wikipedia.org/wiki/Dimensionless_quantity) of 1, such as in `1/s`. It is typically used when none of the basic units are appropriate. For example, "new users per day" can be represented as `1/d` or `{new-users}/d` (and a metric value `5` would mean "5 new users). Alternatively, "thousands of page views per day" would be represented as `1000/d` or `k1/d` or `k{page_views}/d` (and a metric value of `5.3` would mean "5300 page views per day"). * `%` represents dimensionless value of 1/100, and annotates values giving a percentage (so the metric values are typically in the range of 0..100, and a metric value `3` means "3 percent"). * `10^2.%` indicates a metric contains a ratio, typically in the range 0..1, that will be multiplied by 100 and displayed as a percentage (so a metric value `0.03` means "3 percent").
  *   `valueType` (*type:* `String.t`, *default:* `nil`) - Whether the measurement is an integer, a floating-point number, etc. Some combinations of `metric_kind` and `value_type` might not be supported.
  """

  use GoogleApi.Gax.ModelBase

  @type t :: %__MODULE__{
          :description => String.t() | nil,
          :displayName => String.t() | nil,
          :labels => list(GoogleApi.ServiceManagement.V1.Model.LabelDescriptor.t()) | nil,
          :launchStage => String.t() | nil,
          :metadata => GoogleApi.ServiceManagement.V1.Model.MetricDescriptorMetadata.t() | nil,
          :metricKind => String.t() | nil,
          :monitoredResourceTypes => list(String.t()) | nil,
          :name => String.t() | nil,
          :type => String.t() | nil,
          :unit => String.t() | nil,
          :valueType => String.t() | nil
        }

  field(:description)
  field(:displayName)
  field(:labels, as: GoogleApi.ServiceManagement.V1.Model.LabelDescriptor, type: :list)
  field(:launchStage)
  field(:metadata, as: GoogleApi.ServiceManagement.V1.Model.MetricDescriptorMetadata)
  field(:metricKind)
  field(:monitoredResourceTypes, type: :list)
  field(:name)
  field(:type)
  field(:unit)
  field(:valueType)
end

defimpl Poison.Decoder, for: GoogleApi.ServiceManagement.V1.Model.MetricDescriptor do
  def decode(value, options) do
    GoogleApi.ServiceManagement.V1.Model.MetricDescriptor.decode(value, options)
  end
end

defimpl Poison.Encoder, for: GoogleApi.ServiceManagement.V1.Model.MetricDescriptor do
  def encode(value, options) do
    GoogleApi.Gax.ModelBase.encode(value, options)
  end
end
